Planting in Rows: Alternatives

I see a lot of neat rows of leeks, neat rows of garlic, etc.  I'm wondering if there are alternatives to rows.   Small squares like mini-fields?  How about a spiral-galaxy of onions?  What plant would you use for the black hole at the centre of the galaxy?

Any ideas for alternatives to rows?

Equidistant planting used a lot here, as well - but I do salad mixes in patches wherever there's space 

I visited Peppa Pig world at Paultons Park, Hampshire last year and there they have an allotment you ride round on a little tractor, planted up in a range of unusual and visually pleasing ways. It was absolutely stunning. Twisting paths, banks and ditches, curved rows and blocks, domes made from sticks and a few standard greenhouses and sheds dotted around...

We aim for straight lines and rows to get the most from the space but I have to admit after seeing that I felt inspired to create something as beautiful as that, maybe one day!

That park is worth visiting just to see the planting in all areas, clearly someone there knows what theyre doing.